Cyber 370 Boat 25 yamaha Tuning! Help needed!!
Hi, I own . a Cyber 370 boat with a 25hp Yamaha enduro engine.. I would like to tune it a bit up as swapping to a 40hp engine makes the boat very dangerous, heavy and unstable. What are your opinions regarding upgrading the engine. Thought off tune the reeds distance and carb or porting.. Propeller I'm running 9.9 x 13 3 blade aluminium and doing 36mph at the moment.
Thanks Guys your help would be really appreciated